On Fri, 28 Sep 2007 09:18:14 -0500, Paul wrote:



As the lathe is out of commission that makes the interchangeable hub
styles look more attractive. Is there any particular advantage in favor
of 'QD' or taper lock? I'm not particularly well versed in power
transmission but it seems the 'QD' is somewhat more common and is a
couple bucks cheaper than the taper lock style

Any opinions on this would be much appreciated

QD is a bit more flexible in mounting arrangement since you can get
bushings that have either thru or tapped holes for the draw bolts.
Taper-lock is more compact as the bushing is flush or recessed on the
sides of the pulley. I think the taper-lock looks better for the same
reason.

Because of the interference fit on the shaft, either is far superior
to a bored to size pulley, especially for reversing loads.

--
Ned Simmons